Because Tesla abandoned the SolarCity model? Like, SolarCity was a bunch of sales people going door-to-door to sell questionable leases on solar systems and hawking off the junk bonds resulting.
I have a SolarCity install that came with the house.
The Power Purchase Agreement lease seemed shady at first, but ultimately I believe it's working out better for my family than for Tesla.
I'm paying just under 11 cents per kWh and it can only go up a maximum of 3% per year for the next ~15 years.
The result is that solar generally has a generation cost of ~$0.04/kWh (which includes the cost of the land) but meanwhile you have customers happy to be paying $0.11/kWh. The trade off is the one-time cost of installing it on individual roofs is more labor intensive than doing a large-scale installation in a field somewhere, but that just means it's competitive rather than having a massive advantage.